Improvement in pump-valves



D. F. DODGE. PUMP-VALVES.

No. 194,337. Patentd Aug. 21,1877.-

UNITED STATES PATENT OEEIoE.

D. FRANK DODGE, OF LOWVILLE, NEW YORK.

IMPROVEMENT IN PUMP-VALVES.

Specification forming part of Letters Patent No. 194,337, dated August21, 1877; application filed July 17, 1877. a

To all whom it may concern:

Be it known that I, D. FRANK DODGE, of Lowville, in the county of Lewisand State of New York, have invented a new and useful Improvement inPump-Valves, which improvement is fully set forth in the followingspecification and accompanying drawings, in which- Figure 1 is aperspective plan view. Fig. 2 is a vertical section.

Similar letters denote similar parts.

A is a circular spring of metallic wire, having collars B B at thesidesecured upon the same. Encircling the spring at this point between thecollars is the hinge of the valveplate 0. The under side of thevalve-plate is cushioned with the sheet packing or leather D, andthrough both is the vent-opening E,

closed by the supplemental valve F. The parts F, G, and D are heldtogether by means of the hood-headed screw J, with the nut K and washerH. Secured to the valve F, by the screw I, is the weight G, the latterhaving an arm or projection extending over and at a little distanceabove the central screw J.

My invention thus described constitutes a perfectly-adjustableanti-freezing pump-valve. In use the two arms of the spring A A can beso spread apart, or drawn toward each other, as to adapt it to the sizeof the valve-seat or lower end of the pump-barrel, so adjusting the samethat the spring will snugly press the interior of the seat or barrel ofthe pump in which it is to be used. This will bring the packing D overthe opening or collar of the supply-pipe of the pump, the opening Efalling just within the circle of the throat of the latter. I r

The raising of the plunger or bucket of the pump, causing a vacuum abovethe valve, will cause the plate 0, with the several parts attached, torise, turning upon the spring A A, and allow first the air and then thewater to pass into the barrel of the pump, returning to its place themoment the bucket commences its descent.

When it is desired to allow the contents of the barrel to pass back outof the pump, (to avoid freezing,) the bucket must be lowered until thebottom side of the same presses the arm of the weight Gr, causing thesame to be tilted, and thus raising the supplemental valve F, andopening a vent or passage for the water retained above the valve, andpermitting the same to sink to the level of that in the well orreservoir whence it is drawn.

Having thus described the construction and working of my improvement,what I claim, and desire to secure by Letters Patent, is-

1. The lower valve of a pump hinged upon a divided ring of spring metal,and by the outward pressure of said spring retained in position withinthe barrel and upon the valveseat, substantially as described.

2. g In combination with the ordinary pumpvalve, the supplemental valveF, and vent E,

substantially as described and set forth above.

D. F. DODGE.

